Lock combination



April 27,1926.

L. D. GIBSON LOCK COMBINATION Filed DSG. 21. 1925 I N VEN TOR ATTORNEY.

Patented Apr. 27,1926;v

,i UNIT-Eo STATES LEE n. orsoN, or naLnAs, TEXAS.

f insana Parser Fries;

LOCK COMBINATION.

vApplication ined neeember 21, 1925. sei-iai No. 76,764.

.To allie/lorie t may concern.' i

Be it known that I, Lian D. Grinsen, a citizen of the United` States, residing at Dallas, in the county of Dallas and lState or' Texas, have invented; certain new and useful Vlmproveineiits in Lock Combinations, of

Y which thefolloiving is a specilication.

The present infveiitionrelates to improvei nients in locking devices andV more particularly to a newand improved lock combination, which plimger materially increases the efficiency of the lock combination by preventing-accidental release of the said locking element through excessive jar or other- Wise.

The present application is proposed like- Wise as an improvement overthe Letters `Patent No. 1,566,473 granted the Vpetitioner hereof on Dec. 22, 192,5, 'for improvements in locks, bearing Serial Number 7 47 ,108.

With these and other objects and advantages in View, the invention consists in an improved arrangement of parts, by WhichV the said objects are attained, and Which will become apparent as the description proceeds, taken inconnection With the accompanying drawings, wherein: Figure 1 represents a diagrammatic plan `view ,of the lock ivi-,th its-side removed, showing the relative positiono locking elements.

. j Figure 2 isa detail view of the key, showing the peculiar. shaped body thereof. y

'Figure 3 is vadetail vievi7 in elevation, of

. the cylinder, spirally channeled to receive the key.

F-'gure vv4 is a perspective View of the plunger housing. f

Figure 5 is a perspective View in detail, of

the plunger, and

Figure 6 is a perspective vievv of the lock,

showing a reversed assembly of parts, With portions broken away, to more compreheiisively illustrate. Y` Figure 7 is a further modified form of the combination, excluding the counter plunger. In proceeding more in detail, attention is directed to Figure 1 of the drawings, Wherein is illustrated a inajoi'housing 1, preferra compressive spring Well Where a limited .is desired.

ably divided into a series of compartments, f

to individually accommodate-the diierent parts oi. the combination. lThis housing, al*

. though illustrated as being substantially rectangular in shape, may obviously be altered Vto correspond with the form and purpose of the lock in which it is desired to be used.

- In the intermediate con'ipartment l2 of the housing 1, the major locking plunger 3 is adapted tofoperate, While an adjacent co1n-V pertinent 4 contains the counter plunger 5, operating alternately with the saidmajor plunger 3. Coinstantaneous alternating ac'- tion of the tivo plungers is attained by reason oit the pivoted lever 6, centrally mounted in the partition intermediate the compartments 2 and 4, and upon kthe ends ot which restthe reduced llower ends Aoi' the plungers, as illustrated. The Figure 1 shows the plungers in normal locked position, While 5a maintains this normal position. l i

Adjacent the central compartment on the opposite side, a third compartment 7 is provided, which contains a cylinder 8, having a spiral channed 9 therein, as shown more clearly in the detail vieivwthereoi1 in Figure 3. The cylinder rotates in either direction Within the compartment. f.

, 'Thekey, illustrated.separatelyin ligure 2, is of spiral form also, whereby to be con-y orniably received in the spiral channel9 of 'the cylinder 8. The curvature of this spiral however, is not' limited to any speciiic de-V gree.-v The key 10 is provided as shown With a' series of spaced lingers 11 on its sides, Which are adapted, when the key is inserted into the spiral channel 9 of the cylinder, `to protrude beyondthe periphery oithe cylinder, fory purposes later described. The iingers 11 on thekey are shewn-asfbeing acute f right angular projections, .but it is obvious that a serrated key will function equally as earriageof the plunger The housing 12,

to receive the fingers 11 .of the (key, when in its proper position Within the cylinder 8 and incide with the slots or apertures 1310il the housing.

Therefore, it is clearly obvious that, When each part is in its proper place Within the 'illustrated` in Figure 4, is provided With a plurality of slots 13, spaced llO major housing 1, insertion and rotation of the key 10, will cause the lingers 11 thereof to successively enter the slots 13 of the housing 12, and thence into the obliquely disposed slots 14 of the plunger, and riding along these slots, will cause the plunger 3 to move longitudinally ol the housing 12, into or out of engagement With the keeper, not shoivn or described herein.

A modilied example of the combination is illustrated in Figure 7, dispensing with the counter plunger 5, the spring 5a acting directly upon the locking plunger 3. In this structure, the lingers 11 of the key 10 enter first'in the extreme upper apertures 13 of the Wall between the cylinder S and the plunger, to engage within the oblique channels 1erof the said plunger, and which channels in this case, are required to be reversed and directed toward the upper end of the plunger.

lVhile one form of combination is herein illustrated, to shoiv the principle involved in the invention, it should be understood that certain minor changes and modifications in form and application or' the lock ma,Y be resorted to, without departing from the spirit or intent of the invention as set lorth in the appended claims:

1. A lock including a casing; a slotted cylinder disposed Within the casing, a longitudinally movable plunger having spaced slots therein; a minor casing surrounding said plunger having apertures therein and disposed adjacent said cylinder; a spiral key having ingers, the latter arranged to successively enter said apertures in the minor casing to engage successively Within the spaced slots to actuate the plunger, when the key is rotated.

2. A lock including a casing; a slotted cylinder disposed Within said casing; a longitudinally movable plunger having spaced grooves therein; a minor casing surrounding said plunger having apertures thereinr and disposed adjacent said cylinder; a spiral key having lingers: the latter arranged to successively enter said apertures in the miner casing to engage successively Within said spaced grooves to actuate the plunger, when the key is rotated.

3. ln a lock; a partitioned casing, spaced apertures in one or said partitions; movable plungers in said casing, onev of said plunger-s having spaced channels therein arranged to coincide with the apertures of said partitioned casing; means to hold the latter plunger normally in locked position Within the casing; a spirally channeled cylinder' ladjacent said partitioned casing; a spirally ywill successively enter said apertures and engage successively Within said channels, when the key is rotated, actuating the plunger.

ll. ln a lock, a casing provided with, a series of compartments; a locking plunger and a spring controlled counter plunger arranged to alternately move Within separate compartments of said casing, the said first plunger having a series of spaced slots in its side; a compartment for said latter plunger having space-d'apertures therein consecutively coinciding with said slots; a spirally channeled cylinder rotatably disposed adjacentsaid compartment; a twisted key having castellated edges receivable by said cylinder, the projections of said castellated edges arranged to successively enter the apertures of said plunger compartment, to ride Within the slots of said plunger to cause the latter to move within the compartment when the key is rotated.

5. A lock combination including a pair oit alternating plungers, one of which is provided With spaced grooves, a housing with spaced apertures surrounding said latter plunger, said apertures consecutively coinciding With the grooves of the plunger; a spirally channeled cylinder adjacent said housing; a spirally formed key receivable by said cylinder and having lugs spaced therein to successively enter the apertures of said housing to successively ride Within the grooves of the plunger to move the latter alternately with respect to its companion plunger, When the key is rotated, and means to resist the action of said plungers.

G. A lock combination including a pair of alternating plungers, one of Whichis provided with spaced semicircular grooves, aI

housing having spaced apertures surrounding said latter plunger, its apertures arranged to successively correspond with the said semi-circular grooves; a spirally channeled cylinder disposed adjacent said housing; ak spirally 'formed key receivable in the channel of said cylinder and having serrated edges, the sei-rations thereof arranged to successively enter apertures ot' said housing to engage within the said` semicircular grooves whereby to move the plunger with respect to said housing, when the key is rotated.

In testimony whereof I ailix my signature.

LEE D. GlBSON. 

